Bonji Yagkanatu is the son of Lay'ming and Ming Song Yagkanatu. His parent and sister Le'ha were killed at the hands of Yakishu, who in turn was killed by Yoshi. after Yakishu's death Bonji was lead to the ONI temple to become a Black Dragon. He befriended a boy named Najib. They were best friends until he discovered that the Guardians of Yumemi has other plans for Bonji. Which could jeopardize his friendship with Najib.